API Reference > imodeljs-common > Geometry > VerticalCRSProps VerticalCRSProps Interface Vertical Geographic Coordinate reference System definition Implemented by VerticalCRS Properties Name Type Description id "GEOID" | "ELLIPSOID" | "NGVD29" | "NAVD88" Vertical CRS Key name. Defined in core/common/src/geometry/CoordinateReferenceSystem.ts Line 286 Last Updated: 12 June, 2024